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Honeywell DR4500 Circular Chart Recorder

Honeywell DR4500 Circular Chart Recorder is a 1-4 input circular chart (paper) recorder.  The 12″ DIA chart is clearly marked with disposable fibre tip pens for lasting recorders to meet quality assurance demands in many food, pharmaceutical and medical device industries.  There are multiple versions of the DR4500A paper chart recorder, each designed with specific applications and industries in mind.


The Honeywell DR4500 is the “big brother” of the DR4300, low cost recorder.  For modern alternatives, also consider the Honeywell DR Circular Paperless Chart Recorders.


Honeywell DR4500 Circular Chart Recorder Base Models

  • DR45A1 Single Pen Chart Recorder, “classic model”
  • DR45A2 Dual Pen Chart Recorder, “classic model”
  • DR45AT Honeywell Truline Chart recorder
  • DR45AR Honeywell Truline Chart recorder with relay expansion module
  • DR45AW Honeywell Truline Flow recorder
  • DR45AH Honeywell Truline Chart recorder for dairy HTST (high temperature/short time) pasteurisation process
  • DR45AP Honeywell Truline Pasteurisation Flow rate recorder
  • DR45AS Honeywell Truline Safety Thermal Limit recorder


Honeywell’s Truline recorder is a one to four-channel, microprocessor-based, circular chart recorder. Its “one-pen” stylus printhead produces up to four analogue traces and prints alphanumeric chart data on a blank heat-sensitive chart. All four traces share the same time line reference, which the Truline prints


Input types include options for thermocouples, RTD (including Pt100), voltage, mV, and mA.  The Honeywell DR4500A range also includes a variety of output, alarms and control options, along with RS485 Modbus RTU comms.  Accompanying software offers options for totalization, sterilisation calculations and general maths functions.


Honeywell DR4500 Circular Chart Recorder Specs and Options

  • 304.8mm (approx. 12″) Circular chart paper with standard preprinted markings and a calibrated width of 4.62-inches (117.5mm).
  • NEMA 3 (IP54) moulded, foamed-noryl gasketed door with NEMA4X option.
  • Operator interface with keypad
  • Controller output with various proportional control options (including autotune facility)
  • RS 485 Modbus RTU Communication
  • Universal inputs, 10x thermocouple types, RTD, 4/20mA, Volt or mV
  • 322 x 322mm panel cutout, recorder depth approx. 106mm inside panel
  • Multiple mount options


Fluidic hold an exclusive channel partner agreement with Honeywell Field Products division. Our instrumentation engineers are product trained and able to help with instrument selection within the full Honeywell Field Product instrumentation portfolio including their entire range of paper and paperless recorders.  Fluidic order directly with the Honeywell factory via an exclusive channel partner web portal and hold stock for some common lines.  Please contact either office for more information (Glasgow 0141 641 5920 or Warrington 01925 572401).


  • Download Honeywell DR4500A Classic Datasheet
  • Download Honeywell DR4500A Truline Datasheet
  • Download Honeywell DR45AR Datasheet
  • Download Honeywell DR45AW Datasheet
  • Download Honeywell DR4500A Classic Manual
  • Download Honeywell DR4500A Truline Manual
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